Bosch after sales service poor

I purchased a Bosch dishwasher from Makro & installed before the lockdown. There is an error on the cycle. I contacted Makro & they referred me to Bosch as it is still under warranty. I sent them an email & they responded that my query will receive attention from the appropriate people. After waiting for weeks, I decided to resend that mail requesting for support again. NO RESPONSE! On the 26/5 I called Bosch on the number I got from the email ***). I was told to contact Bosch SA on ***. The number wrings & drops. The following day, I called the previous number again & was told that I would be put through to the Bosch SA number & was given the number in case it drops ***). The call was transferred however, it drops. I am desperately trying to get some support urgently as I wish to use it.